Results 51 to 60 of about 389 (129)

Empirical Evaluation of the Replacement of Conventionally Powered Vehicles with Hybrid and Electric Vehicles on the Example of the Poznań Agglomeration

open access: yesEnergies
From the collected data of the Central Register of Vehicles, an average of 15,000 vehicles were registered per month in the Greater Poland region in 2020–2022.
Aleks Jagielski   +3 more
doaj   +1 more source

Nowy model organizacji i funkcjonowania starych przedsiębiorstw przemysłowych

open access: yesPrace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego, 2006
In the analysis of changes occurring in large Polish enterprises, special attention was paid to organisational changes as one of the chief aspects of their adaptation to the new economic conditions that also involves the formation of new spatial ...
Anna Tobolska
doaj   +1 more source

The tram-train as an element of ecological public transport system in the agglomeration in Poland (part 1)

open access: yesPojazdy Szynowe, 2019
The article presents an adverse impact of the transport in agglomerations on the environment and climate conditions. The sources and acceptable levels of environmental pollution and climate degradation are presented as well as contribution of the cars to
Zbigniew Durzyński, Małgorzata Orczyk
doaj   +1 more source

Differences Between Prices of Organic and Conventional Food in Poland

open access: yesAgriculture
Consumers perceive the level of organic food prices as the major obstacle to increasing purchases. The main objective of the presented study is to recognize the differences between the prices of organic and non-organic food (so-called price premiums) in ...
Joanna Smoluk-Sikorska
doaj   +1 more source

Impact of Vehicle Aging and Mileage on Air Pollution Emissions

open access: yesEnergies
The research described in this paper aimed to verify the impact of road vehicle aging on air pollutant emissions. The problem of vehicle aging and the resulting changing air pollutant emissions was identified with the operational mileage of passenger ...
Piotr Pryciński   +4 more
doaj   +1 more source

Micro- and Nano-Pollutants from Tires and Car Brakes Generated in the Winter Season in the Poznan City Urban Environment

open access: yesApplied Sciences
This research, focusing on the environmental impact of tire and brake disc pad wear, constitutes a significant area of transport-related studies. These two key vehicle components are not only the most frequently worn but also generate micro- and nano ...
Robert E. Przekop   +5 more
doaj   +1 more source

Permethrin Insecticide Influence on Microorganisms Present in Surface Waters

open access: yesApplied Sciences
Agriculture and food production use very large amounts of plant protection products. These include insecticides, including pyrethroids, which belong to the third generation of pesticides.
Julia Sroczyńska   +2 more
doaj   +1 more source

Mesoporous Silica Modified with Polydopamine and Zinc Ions as a Potential Carrier in the Controlled Release of Mercaptopurine. [PDF]

open access: yesMaterials (Basel), 2023
Sandomierski M   +6 more
europepmc   +1 more source

Cities in transition: Krakow‘s social, economic and spatial transformation within the last thirty years (selected aspects)

open access: yesActa Polytechnica CTU Proceedings
Krakow is a city that has undergone an immense transformation in recent years. At the end of the 1980s, the period of communism ended and Polish local governments began to operate based on the principles of subsidiarity, decentralisation and ...
Anna Karwińska   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy